Type-writer attachment.



' No. 791,313. P'ATBNTBD MAY so, 1905'.

I B. P .BLAKEMAN..-.

TYPE WRITER ATIACHMB'NT. APPLICATION-FILED JUNE 23,1904.

' 2 snriTs -snzs'r 1. f

- v U ITED STATES B NJAMIN'F. BLAKEMAN, oFINDIA APoLIs, INDIANA,.ASSIGNORVCFD HALF TOWILLIAM M. BIRD, an, on INDIANAPOLIS, ;I DIANA..;

TYPE-WRITER A TACHMEN sraoirrcarron forming part (5r Letters Patent No. 791,313, dated my 36, 1906.

' Application filed r 23,1904. Serial No. 813,866.

To (all whom it may concern:

Be itknown that I, BENJ MIN F. BLAKEMAN,

of Indianapolis, county of Mariomand State of Indiana, have invented a certain new and useful Type-Writer Attachment; and'I do hereby declare that the following is afull,i clear, and exact description thereof, reference being had to the accompanying drawings, in

which like numerals refer .to like parts.-

. My invention relates to an improvement in type-writing machines whereby the paperfeeding means may be automatically stopped at a certain predetermined time, so as to fix tlie bottom margins of the sheets to suit any need that may arise in operating-the machine. Amaohine with said improvement will write down on each sheet to a certain predetermined limit and then automaticallystop. This-re sult is accomplished by two or three very slight and simple attachmentstoa type-writing machine.

While in the drawings herein; the atta'ch ment is shown in connection with the platen and carriage of a Densmore, Smith Premier, or Remington type-writing machine, I do not wishto be limited in the use of the invention to any particular machine, as it can be placed on any of them.

The full nature of the invention will be understood from the accompanying, drawings and. the following description and claims.

n the drawings, Figure 1 is a plan view of the platen andcarriage of a Densmore typewriting machine, the same being centrally broken away.. Fig. 2'is an elevation of the left-hand side with the platen-elevatinglever broken away and showing. the adjustable platen-stop in an unoperative position. Fig.

' 3 is the sameas Fig. 2, with the adjustable stop set in an engaging position. Fig. 4 is the same, showing the parts when the rotation of the platen has been stopped. Fig. 5 is an elevation of the righthand end of what is shown in Fig. 1. Fig. 6 is -a horizontal section on the line 6 6 of Fig. 5. Fig. 7 is a perspective view of the stop. Fig-8 is a plan view of the device as adapted for use in connection with the Smith Premiermachine. Fig. '9 is an elevat on of'a portion of the lefthand end of .-Fig. 8. 10 isa section, on

the line 10,10 offFig; Fig. 11 is see;

'view of a'Remington machine with myjnr provement on it. Fig; 12'i'sjan elevationof the right-hand end. h g

In the'dra'vaings on afplateneshaft 11. 12 represents the rubber-tired hand-wheels at each end of the platen-shaft. 'Theplaten shaft is mounted in a carriage 13. f TheJparts referred to and all theotheru'n there is'showh a I numbered parts in the drawings are old a'rid Common in maehines'of the type freferredi to; Theinvention resides in-the combination, with the platen'and shaft and the carriage fQithe collars 14 and 15, with'their projeeting arms, the'stati'onary back-stop p'in 16, and

justable forward stop- 17. "In otherwolds the new and added parts consist onlyofithe four" parts last mentioned, 14,15,16, and" Theback-stop apparatus of the machinev is on the'right-hand-side and consists of theco'llar-l t, securedon the 'shaft ll by the fs'etscrew 18 or in any other manner and; having a'finger 19, adapted toengage the stationary stop-pin 16 on the carriage'13 when the -right hand end of the platen-shaft,ispushed .in-'

ward..- 'In resetting the platenthe right-hand .end of the platen-shaft is pushed inward against theaction of the spring 26 andjthe platen turned until the'finger'lQ eng'ag'es'the stop '16, as seen 'in Fig.. 6. That will set the platen each; time in the-same position with reference to'the forward st'op apparatn of the platen. The constructionoffthe. ht hand 'end of the platemshaft, whereby it"is longitudinally movable, is shown 'in Figl 6. I

It is old and well}- known. "At theothe'rjend of the platen the collar 15 has two armsfo'ne, 20, a stop-arm,'and the other,'21,extending opposite to and slightly shorterthan the arm 20, has a pin 22 extending fromit adapted to engage at times the plain arms 23 and one stoparm 24. The latter has a rectangular projection from it in position to be engaged by the stop-arm-2O on the collar 15. The stopdisk 17 is mounted 'r'otatably on aspindle, se;--

cured to the carriage, and is pressed outward" by a spring 25, coiled around the spindle.

This stop-disk 17 has three plain arms, (seen in Figs. 1 to 6;) but it may have more or less.

and by them the point on the sheet of paper at which it i desired to stop writing" may be predetermined.

In'operation when the device is set, as'shown in Fig. 3, with the third plain arm 23 in position to be engaged by the pin .22 the platen will rotate two-and-one-hal't' times, and the arm 20 will then engage the stop 24, as shown in Fig. 4. Thenthe machine will stop feeding the paper. If, however, one wants to write another line or two, he can turn the stopdisk 17 slightly, so that the stop-arm 24 thereon will not be engaged by the arm 52-0. The platen for the next sheet is reset at the righthand end of the machine, as has been ex plained, with the resetting construction herein shown. Less than a revolution will reset it. If the stop-disk were turned from the position shown in Fig. 3, so that the second instead of the third arm 23 would first be eng'aged by the pin 22', the machine would not not write so far down on the paper say to line 20. If the first arm 2-3 were set so as to be first engaged by the pin 22, the machine would write a correspondingly-smaller page, stopping, say, at line 10. in this manner not only will the machine be stopped at a certain limit, but that limit can be readily predetermined, and when the stop-disk i7 is set-it will always stop the paper-feed at exactly the same place on each successive sheet. When it is desired not to use this stop mechanism, the disk-stop 17 is turned to the position shown in Fig. 2, where neither arm 20 or 21 will ongage it, because the stop is cut away on one side.

In the arrangement of the invention in connection with the- Smith Premier machine,as seen'in Figs. 8 to 10,- the forward stop 17 is mounted on a frame in the same way as in the Densmorc machine. A collar is secured to the platen-shaft and carries a stop'arm .20 and an arm 2.1 for actuating the stop. These two arms 20 and 21 are formed oi one piece bent laterally so as to form n'ojections. the partZO doing-the work of the pin 22 inFig. l by way of l engaging the arms of the forward stop 17 and rotating in same, and the part 21 adapted to engage the lateral projection A on said forward stop 17. The operation therefore the same as that. shown in Fig. l.

p The back-stop in in the Smith lren'iicr ma chines consists ill the head ol a small screw,

- said screw entering the platen and the head thereof projecting so as to engage the pawl 41'', and thus stop the rotation ol the platei'i in the backward or resetting moronn-nt. The only thing new in this partol' l ht construction over what is common in all lh Smith lreniicr ma chines is the screw in. 'lln: pawl 47 rides Over the SCIOVPlHHUl ll) in the Forward rolnlion ol' the platen.

lll ill: lillllllllil'lllll lin rjliino hown l:

11 and. l2 there to be seen at the righthand end (found at the left-hand end of Fig. 8) the forward stop 17, secured to the carriage. So the for rard-stop mechanism is in no wise ditierent from that in the Smith lrentiier ma chine. The backward or resettim stop mech anism is the same in having a serewdiead 4-6 inserted in the platen. it is adapted to engage a pawl-like projection i8, pivi'itally mounted on a post 49, extendii'ig up from the frame of the machine. The operation of this resetting-stop is the same as that of the Smith Premier machine. in the Smith i rremier urichine and the Remingtoi'i machine the platcnshaft-is not telescoping, as in thefDensmom machine. (Shown in Fig. 6.)

What I claim as my invention, and desire to secure by Letters Patent, is-

l. In a type-writing'machine, the comhinntion with the platen and carriage, of means rotatable with the platen, and a stop for said. rotatahle means that is connected with the carriage and is moved by said rotatable. means to a stopping position and thereby limits the rotation of the platen.

2. In a ty 'ie-writing machine, the combina tion with the platen and carriage, of an arm rotatable with the platen, and means connected with the carriage that is moved by said arm to a position to stop said arm.

3. In a type-writing i'uachinc, the combine tion with the platen and carriage. of an arm rotatable with the platen, and means l or stopping said arm. that is rotatahly mounted in connection with the carriage and that is actuated by said arm to a stopping position.

4:. In a type-writing machine, the combination with the platen and the carriage, of a disk vro tatahl y mounted in connection with the carriage which is provided with a stop-lug, and means rotatable with the platen that engages said disk and rotates. it until stopped by on gage rent with the stop-lug on id dish when the disk has been. rotated to a cerinin position.

In a type-wriiing machine. the i-(imhiirr tion with the platen and the carriage, of a dish rotatably mounted in connection with the carriage and having radial arms and a stop-lug extending therefrom, and means rotatable with the platen that engages the arms of said dish at each revolution of the platen and rotates it until stopped by the stop-lid, on said dish when the disk has been rotated in a eertain position. i

6. in a type-Tiling machine. l.ln 'nnhin:1 tion with the platen and the carriage, ol adisl; nn'nn'ited in connection with the carriage and having a stop-lug, and two means rotatable with said platen, one ol said moans that (ngages and rotates said disk and the other adapted to he engaged and stopped by the v topdug on said dish when the dish has been rotated to a certain position.

T. in a typo-writing machine. lho vomhiml- !ion with the platen and carriage, of a dish stop-iug on said disk when the disk has been revolved to a certain position.

8. In a type-writing machine, the oombination with the platen, the platen-shaft and carriage, of a disk mounted in oonnection with the carriage with radial arms and a stop-lug projecting from said disk, and a pair of arms secured on the platen-shaft, one of said-arms adapted at each revolution to engage an arm on said disk and give it a partial revolution,- and the other arm adapted to be engaged and stopped by the stop-lug on said disk when the disk has been revolved to a certain posi-' tion,

9. In a type-writing machine, the combination with the'pla'ten and carriage, of a disk mounted in connection with said carriage that is cut away on one side and has a stop-lug projecting therefrom, and arms rotatable with the platen adapted to rotate said disk until the stop-lug thereon has been moved into a position to engage said arms and stop the revolution of the same, said arms, however, being too short to engage said disk when. the cut-away portion of said disk is turned toward said arms, whereby the platen may be operated without being stopped bysaid disk.

In witness whereof I have'hereunto aiiixed my signature in the presence of the witnesses herein named.

' BENJAMIN F. BLAKEMAN.

-Witnesses: i

' V. H LOGKWOOD,

N. ALLEMoNe. 

